Enterprise Java
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Access Request and Response Body in HandlerInterceptor
In a Spring Boot application, we sometimes need to inspect or log the HTTP request body and response body. This…
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Tracking Application Startup in Spring
Application startup performance is important for modern Spring applications. A slow startup can increase deployment time, delay container readiness, and…
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Virtual Threads Are Quietly Killing WebFlux. Is That a Good Thing?
Teams are flipping one property, spring.threads.virtual.enabled=true, ripping out reactive pipelines, and getting the same or better tail latency back. That’s…
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Migrating to Spring Boot 3.x: A Practical Guide for Legacy Projects
No more fear: a 5-step checklist for upgrading old Spring applications, without the surprises. Introduction: Why the Jump From 2.x…
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Spring AI Short Term Memory Sessions Example
Large Language Models are fundamentally stateless. If an application sends the question “What is my favorite programming language?” to a…
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Implementing and Testing a Spring MVC HandlerInterceptor
In a Spring MVC application, interceptors provide a powerful mechanism to execute custom logic before and after processing HTTP requests.…
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Spring Boot 4 vs Quarkus 3 vs Micronaut 4: The Java Framework Decision in 2026
I have shipped real services on all three this year. Here is what actually separates them once the marketing slides…
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Build a Web Research AI Agent with Lanchain4j and Ollama
Running large language models locally using tools like Ollama fundamentally changes how we build AI applications. It enables fast experimentation,…
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Building a Document Q&A RAG AI Assistant with LangChain4j
Large Language Models have transformed how applications interact with users, but they come with a major limitation: they do not…
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